Re: Speed Application

["Christoper Hartwell@bbn.com" <chartwel@bbn.com>]

BORED??? Hrmmm.....

Later
98GLXVR6

At 02:36 PM 10/15/1998 -0400, you wrote:
>OKay....follow me here for a minute. I want to write an application that
>takes into account as many possible variables and calculates a realative
>distance, speed of a car run. Such an application could show prime shift
>points and speeds to expect at certain RPMs in certain Gears. I have some
>formulas now to get speed but I reliezied that Torque and Weight must be a
>contributing factor. Does anyone have these formulas laying around or know
>where I could get them.
>
>I know that there are some many factors that play into account that I could
>possible ever write an app that was perfect. The color of shirt affects how
>fast you can go. =} But I want to see how close I can get.
>
>This is what I have so far.
>
>MPH = (RPM * TireDiameter)/(Gear Ratio * 1000)
>TireDiameter = ((Section Width * Aspect Ratio)/25.4) * 2 + RIM
>Gear Ratio
>1    3.78
>2    2.12
>3    1.46
>4    1.03
>5    .84
>R    3.80
>F    3.39
>
>so sample
>205/50 R15 at 3000RPM in 3rd gear on a Jetta GLX
>
>TD = (205 * .50)/25.4 * 2 + 15
>TD = 23.08"
>MPH = (3000 * 23.08)/1.46 * 1000
>MPH = 47.4
>Real World showed pretty close results.
>
>But I want to study acceleration. So I need more formulas.
>
>
>